Rika Aoshima is the eldest daughter of an ordinary Japanese family in the mid-twentieth century. Though Rika is regarded by others as intelligent, athletic, and beautiful, her mother Yuriko believes that her daughter is an iguana; she frequently belittles Rika, and openly favors her youngest daughter Mami. Rika has internalized her mother's rejection and perceives herself as an iguana, and comes to believe that her true parents are iguanas in the Galápagos Islands.

Iguana Girl

Postman

The national university entrance examination is coming up and the students of Class 3/4, which Onizuka Eikichi (AKIRA) is in charge of, enter exam mode. Onizuka who conducts career counselling for the students with assistant form teacher Fuyutsuki Azusa (Takimoto Miori), questions their mentality of aiming for a good university in order to get into a good company.